In the words of Uwe - a health care economist:
The total amount Americans pay their physicians collectively represents only about 20 percent of total national health spending. Of this total, close to half is absorbed by the physicians’ practice expenses, including malpractice premiums, but excluding the amortization of college and medical-school debt.
This makes the physicians’ collective take-home pay only about 10 percent of total national health spending. If we somehow managed to cut that take-home pay by, say, 20 percent, we would reduce total national health spending by only 2 percent, in return for a wholly demoralized medical profession to which we so often look to save our lives. It strikes me as a poor strategy.